Home / 3,996.98-5,515.86-2,228.70

Finding the Fourth Proportional to 3,996.98, 5,515.86 and 2,228.70

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Solution

The fourth proportional to 3,996.98, 5,515.86 and 2,228.70 is: 3,075.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.98 : 5,515.86 = 2,228.70 : x
  2. Step 2: Convert to fraction form
    3,996.98/5,515.86 = 2,228.70/x
  3. Step 3: Cross multiply
    3,996.98x = 5,515.86 × 2,228.70
  4. Step 4: Simplify right side
    3,996.98x = 12,293,197.18
  5. Step 5: Solve for x
    x = 12,293,197.18/3,996.98
  6. Step 6: Final answer
    x = 3,075.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.